期刊
JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS
卷 147, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jmps.2020.104238
关键词
Wear prediction; Contact mechanics; Self-affine surface; Boundary element method; Elastic-plastic material
The study proposes a simple model for adhesive wear in dry sliding conditions, which is based solely on material properties and surface parameters, without fit parameters. By explicitly tracking the sliding process, the model connects particle emission rates and sizes to the macroscopic wear rate in a meaningful way. Further controlled wear experiments and parameters from such work are needed to fully verify and enhance the model.
In order to develop predictive wear laws, relevant material parameters and their influence on the wear rate need to be identified. Despite decades of research, there is no agreement on the mathematical form of wear equations and even the simplest models, such as Archard's, contain unpredictable fit parameters. Here, we propose a simple model for adhesive wear in dry sliding conditions that contains no fit parameters and is only based on material properties and surface parameters. The model connects elastoplastic contact solutions with the insight that volume detachment from sliding surfaces occurs in the form of wear particles, the minimum size of which can be estimated. A novelty of the model is the explicit tracking of the sliding process, which allows us to meaningfully connect particle emission rates and sizes to the macroscopic wear rate. The results are qualitatively promising, but we identify the necessity for more controlled wear experiments and the parameters needed from such work in order to fully verify and improve our model.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据